A new parameterization of the reionisation history

Aghanim, N.; Douspis, M.; Ilić, S.; Langer, M.

France

Abstract

Motivated by the current constraints on the epoch of reionisation from recent cosmic microwave background observations, ionising background measurements of star-forming galaxies, and low redshifts line-of-sight probes, we propose a new data-motivated parameterisation of the history of the average ionisation fraction. This parameterisation describes a flexible redshift-asymmetric reionisation process in two regimes that is capable of fitting all the current constraints.

2015 Astronomy and Astrophysics
Planck 28